Ration



March 26,- 1929. c. c. JEssEN TRAVERSE MECHANISM FOR WINDING AND RBELINGMACHINES Filed Aug. 24, 1927 Patented Mar. 26,1929.

UNITED STATES 1,706,530 PATENT OFFICE.

CHARLES C. JESSEN, OF CLIFTON, NEW JERSEY, ASSIGNOR T NAPON RAYON CORPO-RATION, OF CLIFTON, NEW JERSEY, A CORPORATION OF DELAWARE.

TRAVERSE MECHANISM FOR WINDING AND REELING MACHINES.

Application filed August 24, 1927. Serial No. 215,207.

, This invention relates to a traverse mechanism for winding and reelingmachines. It is particularly intended for use in the artificial silkart, though, as this description proceeds, it will be seen to be adaptedfor use in any relation where a thread is to be laid evenly upon arotating bobbin.

In the artificial silk art, it is common practiceto lead the threads ofartificial silk from the spinneret, that is immersed in the hardening orprecipitating bath, to a centrifuge, where it is twisted and built up inthe form of a cake. It is then necessary to ,decop the thread: that is,to free it, as far as possible, of the residual copper sulphate. To thisend, the thread is led from the cake to cylinders that are being rotatedin acid baths of a decopping solution, and a suitable traverse mechanismis employed to evenly lay the thread upon said cylinder in open orporous formation, so that the decopping bath may comeinto contact withall parts of the thread, and so that the thread may be thoroughly Washedby being rotated, with its supporting cylinders, in a water bath, in alater operation. 7

Considerable difliculty has been experienced with the traverse mechanismheretofore employed, because of the action of the acid and acid vaporsupon the joints and bearings. the parts but prevented the properlubrication of the same. The dilliculty of maintaining properlubrication was enhanced because of the negligence of the operators ofthe machine. That is to say, while these operators might have lubricatedthe traverse mechanism, if thetask of lubrication has been an easy one,they soon came to neglect any lubrication at all when the action of theacids had rendered that task a difficult one.

It is a primary object of the present invention to provide a traversemechanism, which will employ a minimum of rotative or oscillatory jointsor bearings, within the range of the acid action, with the end in viewof providing a traverse mechanism which will operate eiliciently andsmoothly at all times, with a minimum of attention.

The figure, shown in the accompanying drawing, is a transverse sectionalView of the portion of a decopping machine, with the traverse mechanismof the present invention applied thereto.

Such act-ion not only corroded.

In the drawing, designates a suitable base plate upon whichlongitudinally extend ng troughs 6 are disposed, said troughs serving toreceive a bath of a decopping solution. Any desired number ofv mandrelshafts 7 may be disposed transversely of the machine and carry mandrels8, upon which removable cylinders 9 are adapted to he slid, and it isupon these cylinders that the thread 10 is wound. Each mandrel shaft 7carries a bevel pinion 11, which meshes with a bevel gear wheel 12, upona longitudinally extending main shaft 13. The mechanism, so fardescribed, is all of usual and well known construction.

To provide the traverse mechanism of the present invention, I locate anoscillatory shaft 1 1, at a point above shaft 13. Oscillation may beimparted to, shaft 14- through crank arm 15, connecting rod 16,eccentric strap 17, eccentric 18, and a longitudinally extending driveshaft 19.

It is to be understood that any suitable cam mechanism may besubstituted for the eccentric 18. This eccentric'lS may be disposed atone end of the machine, and at a point where it Will be out of reach ofthe acid or acid vapors, and this one eccentric may serve to actuate thetraverse mechanism of any desired number of mandrel shafts. The traversemechanism of any given pair of mandrels 8 comprises a member 20, ofsubstantially inverted T-shape. The head of this member has a curvedlower face over which flexible steel cables or bands 21 and 22 act.These cables are secured by suitable blocks or clips 23 24 to alaterally sliding rod 25, said rod being mounted for 'slidable movementin bearings 26. The part 25 constitutes the traverse bar, by which thethread guides 27 are carried. The mandrel shafts 7 are supported inbearings 28 and 29. Bearings 29 are lubricated by the grease cup 30. Thebearings 28 carry vertical extensions 31, upon which the bearings 26 aresupported. Grease cups 32 carried by these vertical extensions feed intwo directions, viz: upwardly at 33 to lubricate the bearings 26, anddownwardly at 34-, to lubricate the bearings 28. The shaft 14 ispreferably mounted in ball bearings 35, and requires very littlelubrication; The bands 21 and 22 require no lubrication whatever. Thus,it will be seen that all essential lubrication is provided by the greasecups and 32.

I find that the mechanism described materially increases the life of thedecopping machine, and improves the quality of the thread, because itoperates so smoothly that much of the vibration is eliminated. It willreadily be appreciated that vibration, in a machine of this character,orclimirily considerable, because it is the customary practice todispose a large number of the decopping units in a row longitudinally ofa main bed of the machine, said units extending transversely of themachine, as in the present case. It is apparent that with a large numberof traverse mechanisms, operating simultaneoifisly, the tendency is toset up considerable vibration. Further, I find that the mechanism of thepresent invention produces a better wound bobbin. The points of crossingof traverse of the thread as wound on the bobbin remains in better shapethan for inerly, leaving these bobbins in a more porous condition, whichis a very desirable feature in subsequent operations, such as washingand drying.

It is to be understood that the invention is not limited to the preciseconstruction shown, but that it includes within its purview Whateverchanges fairly come within either the terms or the spirit of theappended claims.

Having described my invention, what I claim is:

1. A traverse mechanism, comprising a slidabl'e rod carrying a threadguide, a swinging quadrant and flexible elements connected atone oftheir ends to said quadrant, and at the other of their ends to said trverse rod, said flexible elements riding over the face of said quadrantin the swinging movenient of the latter and extending in oppositedirections therefrom and being alternately drawn in opposite directionsby the movement of the quadrant.

2. A. device of the character described, con'ipri'sing a pair ofmandrels disposed in substantial alignment with each other, a bodilyslidable traverse rod the ends of which overhang said mandrels, threadguides carried by the ends of said traverse rod, a swinging quadrant andflexible membcrs connected to said quadrant and to the traverse rod,said men'ibers extending in opposite directions from said. quadrant, andbeing alternately drawn upon in opposite directions by the movement ofthe quadrant.

A device of the cl'i'a'ra'c'ter described,

com 'irising a pair of mandrels, a common actuating means for rotatingsaid mandrcls, a slidable traverse rod disposed above said mandrels,thread guides carried by said traverse rod, an oscillatory shaft, meansfor imparting oscillatory movement to said shaft, and aquardrant towhich swing in movement is imparted by said shaft, said quadrant havinga curved lower face, and flexible members connected to said quadrant andto the traverse rod. and riding); over the curved face of saidquadr:-.nl.

4. A device of the character described, compris'in a mandrel shaft, :1hearing) for the same, a vertical projection from said bearing, abearing upon said vertical projection, a traverse rod slidable throughsaid bearing, a swinging quadrant and a flexible member connected tosaid quadrant and to the traverse rod.

5. In a dcvi of the character described, the combination with a pair ofmandrel shafts, bearings for said shafts, vertical extensions upon saidbearings, bearings upon the vertical extensions, a traverse rod mountedin the last named bearings, a swinging quadrant, means for impartingmovement to said swinging quadrant, and a pair of flexible membersconnected at one of their ends to said quadrant, and at the other oftheir ends to said traverse rod.

6. A device of the character described, comprising a supporting frame, ashaft extending longitudinally of said frame, means for impartingoscillatory movement to said shaft, a depending quadrant carried by theoscillatory shaft and to which swing gin c movement is imparted by saidshaft, said quadrant having a curved lower face, a pair of flexiblemembers connected at one of their ends to said quadrant, a traverse rodto which the other ends of said flexible n1embers are connected,bearings in which said traverse rod mounted for slidable movementtransversely of the frame of the ma- :hinc, thread guides carried by thetraverse rod, mandrels over which said thr ad guides move, mandrelshafts by which said inalidrcls are carried, means for impartingrotation to the mandrel shafts, and means for supporting the bearings ofthe traverse rod from the bearings of the mandrel shafts.

In testimony whereof he allixcs his signature.

CHARLES C. JESSEN.

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